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3 entries match your criteria.  

 
 

Historical Markers in Groton

 
Clickable Map of Middlesex County, Massachusetts and Immediately Adjacent Jurisdictions image/svg+xml 2019-10-06 U.S. Census Bureau, Abe.suleiman; Lokal_Profil; HMdb.org; J.J.Prats/dc:title> https://commons.wikimedia.org/wiki/File:Usa_counties_large.svg Middlesex County, MA (566) Essex County, MA (399) Norfolk County, MA (232) Suffolk County, MA (602) Worcester County, MA (441) Hillsborough County, NH (96)  MiddlesexCounty(566) Middlesex County (566)  EssexCounty(399) Essex County (399)  NorfolkCounty(232) Norfolk County (232)  SuffolkCounty(602) Suffolk County (602)  WorcesterCounty(441) Worcester County (441)  HillsboroughCountyNew Hampshire(96) Hillsborough County (96)
Lowell and Cambridge are both the county seat for Middlesex County
Groton is in Middlesex County
Middlesex County (566)  ►
ADJACENT TO MIDDLESEX COUNTY
Essex County (399)  ►
Norfolk County (232)  ►
Suffolk County (602)  ►
Worcester County (441)  ►
Hillsborough County, New Hampshire (96)  ►
 
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1 ► Massachusetts, Middlesex County, Groton — Groton — 1630 - 1930 —
2 ► Massachusetts, Middlesex County, Groton — John Tinker / John Shattuck —
3 ► Massachusetts, Middlesex County, Groton — Parker House — 1630 - 1930 —
 
 
  
  
 
 
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Nov. 11, 2026